If such evaporation losses are apparent, it is recommended that the Pressure Vessel Procedure (see 11.2 and 11.2.3) be used. In addition, if the lab decides it wants to minimize or mitigate any evaporation losses associated with the analysis of automotive gasolines (even if the corresponding vapor pressure is ≤ 80 kPa), the option exists for the lab to test samples using the Pressure Vessel Procedure (see 11.2 and 11.2.3).